Tool.



No. 877,153. PATENTED JAN. 21, 1908.

' R. WOLFREY.

TOOL.-

APPLIOATIOfiI'ILEi) AUG. 7. 1907.

asses jz/ezwom' ran onnro REUBEN WOLFBEY, or west" ALEXANDRIA, onro.

TOOL.

Specification of Letters Patent.

Patented Jan; 21, 190s.

Application filed August 7,1907- Qerial No. 387.564;-

, placed, and adjusted more quickly and with more ease andaccuracywithout regard to the temperature of the boiler. l attain thisobject by means of the mechanism illustrated in the accompanyingdrawing,in which F igure 1 is a side view or vertical section of the entiretool, except the handle. Fig. 2 is a top view of the tool. Fig. 3 is anend view of the same, and Fig. 4 shows the handle of the tool, which isdetachable and consists of a piece of ordinary gas or water pipe of anydesired length. The entire tool is essentially a clamp to be attached,at will, to the face of the manhole in the following manner,'-- vThrough each end of the plate C. Figs. 1, 2, and. 3, are inserted thebolts D D; on the lower end of which are T shaped heads. These bolts areheld in place by the pin F,

Figs. 1, 2, and 3, which restor. the beveled washer N Figs. 1, 2, and 3,and which per- I mit the bolts D D to make one-fourth of a turn in theplate C, Fig. l. The end play of these bolts D D is limited by thekeepers E E, Figs. 1, 2, and-3 over one end of each of the pins F F,Figs. 1, 2, and 3. Through the center of the plate (1 Fig. 1, is linedthe bolt B, Figs. 1 and 3, to the top of which is hinged the handle-lugH by the pin A, Figs. 1, 2, and 3. The handle H, Fig. l, is fitted witha movable bandJ and hook K, Fig. 4, which may be fixed at any reouireddistance from either end of the handle, and through the handle isinserted at a right angle thereto a rod M, Fig. 4, by which the handleand tool can be revolved to any desired position.

plate, and this is accomplished I To attach the clamp or tool to themanhole plate for the removal of the same, the dogs and dog-bolts areremoved from the serted into the bolt slot in the manhole plate, eachbolt is given one-fourth turn which, by means of the beveled Washers NN, Figs. 1, 2, and 3, clamps the tool tightly to the plate. The book K,Fig. 4, on the handle is'then inserted into a link ofa light chainsuspended in front of the manhole when by means of the leverage obtainedfrom the suspended handle the plate is lifted from its placeand by therod M, Fig. 4, through the handle, is turned to the position necessaryto enable it to be withdrawn from the boiler.

inserted; the end of the plate with bolt inserted, is introduced intothe manhole the tool or clamp is then attached to the plate as for itsremoval, when the plate is swung into the boiler and drawn to its placewithout danger of displacing or injuring the gasket and securely held inplace while the dogs and bolts are adjusted.

What I claim as my invention and desire to secure by Letters Patent 1s,-

A tool for removing and replacing manhole lates in steam boilers,consisting of a metal plate of any convenient size, through each. end ofwhich is insert-ed a movable and adjustable bolt with tee (T) shaped.head, by means of which the tool may be clamped to the manhole plateby-inserting the tee (T) ends of said bolts into the slot in the manholeplate and giving the bolts a one-quarter turn, and to the center ofwhich plate, on the side opposite the tee (T) ends of said bolts, ishinged a jointed handle for bringing and retaining the manhole plate toany desired position, all substantially as set forth.

CHARLES D. GLAUDER, lVILLIAM W. Unonsn.

plate and the T ends of the. bolts D D in- 'To replace the plate, onedog-bolt is first

